Sheet-metal trim.



1". 0. GUNN. SHEET METAL TRIM. APPLIGATION FILED DEC. 9, 1912.

Patented Feb. 3,1914.

WITNESSES:

BY. A

FBEDERICK C. GUNN, OF KANSAS CITY, MISSOURI SHEET-METAL TRIM.

Application filed December 9, 1912. Serial No. 735,737.

Specification of Letters Patent.

Patented Feb. 3, 1914.

To all whom it may concern Be it known that I, FREDERICK C. GUNN, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Sheet-Metal Trims, of which the following is a specification. a

My invention relates to sheet metal trims, frames or casings for doorand windowopenings, and has for one of its objects to provide a san tary trim, frame or casing of the kind, which will be especially desirable for use in hospitals, school-houses, and kitchens.

A further object of the invention is to provide metal frames adapted to have a maxi mum amount of bearing surface directly upon the supporting wall the a dvantagesof which will be obvious. 1

A further object of the invention is to provide trims. of the kind with integral architrave moldings which will serve as guides for plasterers finishing tools, and to provide such moldings with integral means for bonding with the plaster and avoiding the cracks between plaster and trim which always develop where wooden trim is used. As my trim is made from one piece of sheet metal, no cracks. exist therein to-harbor dust and germs, and all its exterior surfaces are easily accessible for cleaning.

A still further object of the invention is to provide improved anchoring devices for securing these trims to tile or brick walls and to the mortar and plaster thereof.

In order that my invention may be fully 1 understood, reference will now be made to the accompanying, drawings, in which- Figure 1 is a perspective view of a portion of a trim, frame or casing for a doorway for single-sw ng doors, the trim being detached.

Fig. 2 is a horizontal section of the same trim in position upon a brick or tile partition wall, the mortar being omitted to show the construction; also showing a portion of a door associated with the frame. Fig. 3 is a horizontal section of the same trim adapted fondouble-swing' doors, and a portion of such adoor; the trim being fixed in position upon a wooden studded wall with the plaster 4 thereon. Fig. 4 is a horizontal section of a modified style of frame which is designed for use where the trim is metallic on one side of a wall and of wood on the other side; showing also a portion of a door. Fig. 5 is a detail view taken in vertical section on a 3. Extending at right angles from corners 3 and 4 of the body, checks 5 rately upon the sides of the Wall for which the-trim is designed. In each cheek 5 is formed an architrave molding (j, which preferably has an ogee or similar curvature, as shown in Fig. These moldings have abrupt inner walls 7, whichare normal to the wall surface (8, Fig. 3) and set a short distance from the edges of the cheeks-5, thus leaving flanges t) which fit the tile or brick (10, Fig. 2) snugly. At the outer edges, the metal of the normal walls 7 is sharply bent and doubled upon itself to form small lips are two similar, opposed which are spaced apart to fit accu-' or rolls 12, which tend to protect the plas tering from injury and insure a sharp line at the visible line of contact of the metal with the plaster. The depth of said walls, including their lips 12, determines the-depth of the plastering, and said lips provide'useful grounds for the plaster -finishing tools,

as the plaster is finished flush with said grounds. The moldings 6 are curved sharplyaway from said grounds, so as to present only narrow surfaces to said tools. The walls 7 are each provided with a longitudinal se-' ries of slots 15, the spacing of which may vary somewhat. functions: first, to receive coengaging parts of devices for anchoring the trim to a brick or tile wall; second, to provide means for bonding the trim to. the plaster 14 (Fig. 3) at numerous points by the act of laying the plaster. The anchors, above mentioned, are

each formed of a single bar of sheet metal,

16, (Fig. 6) provided with narrow flanges 17 upon its longer edges. flanges is extended in length past the ends of the main bar 16, as shown at 18, and the projecting ends 18 each have an integral lug 19, projecting at approximately rightangles thereto, or in a plane parallel to that of the bar 16. The notches '20, when the anchor is in position, receive the flanges 9 (Fig. l) of the trim. The flanges 17 are made of less depth than the usual thickness of mortar laid between courses of brick or tile, and the lugs 19 are spaced to register with the two rows of slots 17 In erecting a vertical piece of this triin in a brick or Said apertures have two One of said Sta.

tile partition, the trim is stayed in posi through the open side thereof by holding the anchor obliquely and then turning it to level position, then passing the anchor lugs 19 through opposite slots 15 until the bottoms of the notches 20 strike the corners it (Fig. of the trim. \Vith the anchor in this position, the mason embeds it in mortar, 13, as sh wn in Fig. 5, said mortar then receiving the superposed brick or tile 10. After the mortar has set, it is obvious that the anchor 16 will be immovably fastened by its flanges 17 against any outward pulling't'orce. Each anchor also serve as a pos tive tie between the frame checks 5, by means of its lugs 1%) which hold. the parts 5 and 0 against spreading stresses. As many tLUCl'IOIS 1t may be applied to one piece of trim as the judgment of architects may specify. It is an importantadvantage of this trim, that its opposite sides 5 (Fig. 2) make actual contact with the end of the pan tition or wall: the shocks caused by slunming of the door being received by the p; rtition. or wall instead of by the side metal of the trim, or by fastening devices. When the plaster applied (the lath not being F shown in the ,drawing) some plaster will spreadthrough the slots 15 (.Fig. 1) into the interior of the moldings t3, and will form Il'ltlSlllOOIl't-lttltlS 1st Fig. 25) therein, the plaster being thuslocked into the frame at numerous points.

The style of trim shown in Figs. 1 and 2 is adapted for mounting on wooden bucks, as 2 Fig. 3, by punching nail-holes in the flanges f) to receive nails 2-lthat are driven into the bucks. The frame 25, shown in Fig. 3, is made without a stop and is adapted for doubleswing doors, as 26. The anchoring nails Ql are repeated at suitable vertical distances.

Fig. l illustrates a modified metal trim which I have designed for use on partitions having a sanitary metal trim on one side and an ordinary trim on the other. in this figure the metal trim, 2'T----:28, is right-angled in section and comprises the architraie member and the jamb member 29. I11 tegral witt rm'ember 27 are the molding 2t) and/the fl nge 30, which is nailed to the buck 31. A jaiiilii BQ erected outside of the bucks, and the trim 3 5 is fastened to said jamb and a ground' 3%. The stop is rabbeted -to receive the edge of the metal trim part 28, which it ci'anceals. 36 is one of the fastening screws which pass through both the stop and the metal trim part 28. It will be observed that the trim 27-48 has contact with two surfaces of the jamb.

It is obvious that the manner of erecting metal trims in accordance with my invention would vary with the conditions under which they are used, and that various circumstances may arise by which the herein described constructions would be modified, and yet be within the scope of the invention.

The trim shown in Fig. 2 or Fig. 4 may easily be adapted for window framing,- and that in Fig. 4- to an outside door, as will he understood by all persons skilled in the art.

Having described my invention, -.'.im as new, and desire to secure by Lotti Pata partition wall or bucks, each of said cheeks having a raised, hollow molding thereon,

and one wall of said molding having a series of openings therein, adapted to admitplaster to the interior of said molding and combined tie-bars and anchors having terminals to enter said. opening, for the purpose described.

3. A metal trim, frame or casing having integral architrave moldings on its opposite sides, one wall of each molding having a longitudinal series of openings therein, in con'lbination with an anchor tie-bar adapted to tie the sides of thetrim together, said anchor tie-bar having lugs which enter one opening of each series for the purpose specified.

4-. In combination with a brick or tile wall, a. metal trim having opposed wall-fitting cheeks provided with raised, hollow moldings one wall of each molding havmg openings therein at different heights; and a metal anchor and tie-bar lying transversely withinthtwall, embedded in mortar, said bar comprising lugs which enter openings in said walls of the moldings, said bar locking the trim againsttremova].

In testimony where f I aflix my signature. in the presence of two witnesses.

FREDERICK C. GUNN. Witnesses F. G. FISCHER, L. J. FISCHER. 

